French OATs and Bobls

French government bonds—Obligations Assimilables du Trésor (OATs) and Bobls—represent the second-largest and most stable government bond market in the eurozone after Germany. France issues OATs in regular auction cycles, covering maturities from 1 year to 60 years. Bobls are medium-term bonds (typically 2–5 years). Unlike Germany's ultra-safe bunds, French OATs offer a modest yield premium, typically 20–50 basis points above comparable German bonds, reflecting France's slightly higher debt load and marginally weaker credit profile.

Key takeaways

• French OATs are issued in maturities from 1 year to 60 years, with regular Treasury auctions
• OAT yields typically trade 20–50 basis points above German bunds, offering modest yield pickup
• The OAT-bund spread widens during periods of French fiscal or political uncertainty
• France is the eurozone's second-largest economy and second-safest issuer, after Germany
• OATs are highly liquid, with tight bid-ask spreads comparable to bunds
• For eurozone allocators, OATs offer a simple way to pick up yield while remaining within the monetary union

The structure of French government debt

France has issued government bonds for centuries, with the modern Treasury (Trésor Public) managing regular auctions. As of 2024, France's outstanding government debt exceeds €3 trillion, making it the second-largest issuer in Europe after Germany. Annual issuance averages €180–220 billion in new bonds.

The French Treasury issues bonds in regular cycles:

• BTF (Bons du Trésor à Taux Fixe): short-term Treasury bills in 4-week and 13-week maturities
• Bobls (mid-term bonds): 2-year, 3-year, and 5-year maturities (the term "Bobl" is less commonly used in modern times; French Treasury now uses the standard OAT denomination for all maturity buckets)
• OATs (long-term bonds): 7-year, 10-year, 15-year, 20-year, 30-year, and 50-year maturities

The 10-year OAT is the benchmark security, with daily trading volumes exceeding €30 billion, making it nearly as liquid as the German 10-year bund.

OATs vs. bunds: the yield spread

The typical spread between a 10-year French OAT and a 10-year German bund is 20–40 basis points (0.2–0.4%). During normal market conditions, this spread reflects:

1. France's marginally higher debt-to-GDP ratio (110% vs. Germany's 60%)
2. Slightly lower economic growth expectations in France
3. A liquidity premium (bunds are more actively traded than OATs)
4. Political and fiscal uncertainty specific to France

For example, in 2024:

• 10-year German bund yield: 2.5%
• 10-year French OAT yield: 2.85%
• OAT-bund spread: 35 basis points

This spread is tight, reflecting strong confidence in French creditworthiness. During the 2011–2012 eurozone crisis, the spread widened to 150+ basis points as markets feared France might be drawn into the crisis. By the 2020s, as French credit stabilized, the spread narrowed to 30–50 basis points, a "normal" premium for the second-safest issuer in the eurozone.

France's fiscal and political landscape

France's economy is the second-largest in the eurozone (after Germany), with a diversified industrial and service base. Its public finances are manageable but not as strong as Germany's. French government debt is roughly 110% of GDP, higher than Germany's 60% but lower than Italy's 140% or Greece's 170%.

Politically, France is stable and has a clear constitutional system of government, making it a low-risk issuer. However, pension reform, labor market issues, and fiscal policy are perennial sources of political debate. In 2023, proposed pension reforms led to strikes and political tension, which briefly widened the OAT-bund spread. Over time, French politics have proven manageable from a credit perspective, and the spreads have normalized.

Buying French OATs directly and through funds

You can purchase OATs directly through a brokerage (Interactive Brokers, Fidelity, et al.) with bid-ask spreads of 1–3 basis points for benchmark 10-year issues. Minimum investments vary by broker, typically €1,000–€25,000. Settlement is in euros, so you'll need a euro account or be subject to currency conversion costs.

For simpler access, European or eurozone bond ETFs provide OAT exposure:

• iShares Euro Government Bond ETF (BIGB): Holds bonds from eurozone members, including French OATs. Expense ratio: 0.10%.
• Vanguard European Government Bond ETF (VEGS): Similar approach, diversified across eurozone sovereigns. Expense ratio: 0.04%.
• iShares French Government Bond ETF (EUN.L): A dedicated French OAT fund, though less common than broader eurozone funds.

These funds provide daily liquidity and automatic rebalancing, making them suitable for investors who want French exposure but don't want to pick specific maturities or deal with settlement logistics.

The OAT-bund spread as a risk barometer

The OAT-bund spread is watched by traders as a barometer of eurozone fiscal and political health. A widening spread (OAT yields rising relative to bunds) signals increased risk perception. A narrowing spread (OAT yields falling relative to bunds) signals confidence is returning.

Key episodes:

• 2011–2012 eurozone crisis: The spread widened to 150 basis points as markets feared contagion.
• 2020 COVID-19 panic: The spread briefly widened to 100 basis points before ECB purchases stabilized it.
• 2023 pension reform: Brief widening to 60 basis points during political turmoil.

For investors, monitoring the spread is a simple way to gauge eurozone stress. A spread above 80 basis points suggests real risk. A spread below 30 basis points suggests normal conditions.

Real yields and inflation expectations in France

As of 2024, the 10-year French OAT yields roughly 2.85% nominally. With inflation expectations around 2.0%, the implied real yield is roughly 0.85%. This is comparable to German bund real yields (which are lower due to the lower bund yields) but reflects the same eurozone inflation outlook and growth expectations.

The key difference from German bonds: French real yields include the extra 35 basis-point OAT-bund spread. This means that if the spread widens (say, to 60 basis points), French OAT yields would be expected to rise relative to bunds, benefiting investors who sold (locked in higher yields) but penalizing those holding long positions.

Duration and price sensitivity

French OATs have the same duration characteristics as bonds of equivalent maturity in any other market. A 10-year OAT with a 2.85% coupon has a duration of roughly 8.5 years. A 1% rise in yields causes the price to fall roughly 8.5%; a 1% fall causes the price to rise 8.5%.

This means French OAT investors should not expect lower volatility than German bund investors just because the spread is tight. The driver of price swings is primarily the absolute yield level (common to all eurozone bonds due to the shared ECB interest-rate policy), not the spread.

OAT ladders and the medium-term opportunity

Some French bondholders construct a ladder of OAT maturities (2-year, 5-year, 10-year, 20-year) to capture yield while maintaining reasonable duration. A ladder ensures that a portion of the portfolio matures each year, allowing reinvestment at prevailing rates and avoiding the risk of being overcommitted to long maturities after a sharp rally.

The 5-year OAT is often favored by income-oriented investors because it strikes a balance: more yield than 2-year bonds, less duration risk than 10-year bonds.

ECB policy and OAT yields

Like all eurozone bonds, French OAT yields are heavily influenced by ECB monetary policy. When the ECB raises rates, all eurozone yields rise (including OAT yields). When the ECB cuts rates, all yields fall. The ECB's holdings of OATs (which it accumulated during quantitative easing) are also relevant: ECB purchases suppress yields, while ECB sales or balance-sheet shrinkage push yields higher.

In 2024, with the ECB holding rates at 4.25% and beginning to signal potential cuts later in the year, French OAT yields are likely to decline if those cuts materialize. This forward-looking dynamic creates trading opportunities: investors can buy OATs today, anticipate rate cuts, and realize capital gains when yields fall.

Tax considerations for OAT investors

For French residents, OAT interest is subject to standard income tax but may benefit from certain exemptions depending on residency status and account type. For non-residents, interest is typically subject to a withholding tax (though treaties may reduce it). For US residents, OAT interest is subject to US federal income tax and may be subject to French withholding tax.

In practice, most international OAT holders use ETFs or hold them in tax-deferred accounts to simplify taxation.

OATs vs. other eurozone sovereigns: a decision framework

When considering which eurozone bonds to hold, OATs offer a middle ground:

• Safer than Spanish, Italian, or Greek bonds (narrower spread to bunds)
• Higher yield than German bunds (35 basis points more)
• More liquid than smaller-issuer bonds (second-largest eurozone market)
• Less complex than peripheral-country bonds (lower credit risk, simpler analysis)

For a conservative eurozone allocator, a 70% bund / 30% OAT split provides yield pickup with minimal credit risk. For a return-seeking allocator willing to accept more risk, a 50/50 split with other eurozone sovereigns (Spain, Italy) is viable.

The 30-year OAT and long-term perspectives

French also issues 30-year OATs, which are less liquid than 10-year OATs but offer higher yields. The 30-year OAT typically yields 50–100 basis points more than the 10-year OAT, compensating for duration risk. For conservative investors with long time horizons (pensions, endowments, very-long-dated liabilities), 30-year OATs are an option, though less commonly held than 10-year maturities.

Currency exposure and hedging

For non-eurozone investors, OATs carry EUR/USD exchange-rate risk, just as German bunds do. A US investor buying French OATs faces the same choice: hold unhedged and benefit/suffer from euro movements, or hedge the currency exposure through forward contracts (at a cost of 1–2% per year).

The consensus among most global fixed-income allocators is to hold European bonds (bunds, OATs, other sovereigns) unhedged, allowing portfolio currency exposure to diversify away from dollar holdings. Hedging is typically used only by investors with specific liabilities in USD.

Conclusion: the balanced eurozone position

French OATs represent a straightforward way to gain eurozone exposure beyond the safest (bunds) while maintaining strong credit quality. The 35 basis-point yield pickup over bunds is modest but meaningful over long holding periods—10 basis points per year compounds to significant outperformance over decades. For global allocators building a eurozone presence, a bund-OAT core (perhaps 60% bunds, 40% OATs) is a proven strategy that balances safety and return.

OAT allocation decision flowchart

Related concepts

• What Government Bonds Are

Next

Chapter 5 has covered government bonds across the major developed markets—US Treasuries, UK gilts, German bunds, and French OATs—providing a global perspective on how to diversify within sovereign fixed income. The next chapter explores investment-grade corporate bonds, where credit selection and sector exposure begin to matter alongside interest-rate movements.